Master Brake Cylinder Problem?

[martyn271985]

Hi guys need some advice please!just done service on my 1.9 diesel galaxy. Everything went ok except for one thing! I had to fit new front pads. The piston didnt have to be compressed that much so didnt undo the nipple. Bled the brakes after fitting pads but when stopping the peddle keeps travelling but does so very slowly. The peddle is nice and firm when ignition is off but am worried something has gone wrong!Could it be the master cylinder? Or do the pads just need bedding in?Thanks for any advice you give

[roy202]

Hi guys need some advice please!just done service on my 1.9 diesel galaxy. Everything went ok except for one thing! I had to fit new front pads. The piston didnt have to be compressed that much so didnt undo the nipple. Bled the brakes after fitting pads but when stopping the peddle keeps travelling but does so very slowly. The peddle is nice and firm when ignition is off but am worried something has gone wrong!Could it be the master cylinder? Or do the pads just need bedding in?Thanks for any advice you give

does the pedal go down to the floor? when you change pads there is no need to bleed the brakes you simply undo the top on the fluid resivoir and push the pistons in , put in the pads and pump the brake pedal until hard.

[Richard gal]

Sounds like the master cylinder is leaking past a little, and probably was before you did the pads, while running you have the servo helping so feels better.

 

If the leak past is very little, EG over 1 min to get the peddle to the floor then its OK, but monitor it for more wear.

[martyn271985]

forgot to undo the fluid resivoir when pushed the piston back in. Have done this loads of times before on other cars and not had this problem! When i bled the brakes the stuff coming out was horrible green colour. I didnt put that much new fluid in so do you think a complete new fluid change would solve problem?or at least help?Peddle takes over a minute to reach the floor.